Glasses Measurements - How to Know Your Frames Size
Glasses Measurements - How to Know Your Frames Size
To ensure your frames fit correctly, you must first determine what frame size is best for you. The best place to start is by taking the measurements of a pair that you already wear and feel comfortable in.
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You can usually find the measurements on the inside of the temple of your glasses. Some may also refer to this section as the "arm" of your glasses. The frame measurements normally appear as three numbers separated by dashes for example, 48-19-140. These three numbers reflect the measurements of different parts of the frames.
Eyeglass Frame Sizes Explained
Eyeglass frame sizes explained
Frame sizes: The numbers
Eyeglass frame size is indicated by three numbers stamped on the inside of your glasses. These glasses measurements usually appear on the inner surface of one of the frame temples that hold your glasses in place behind your ears.
Specifically, the frame size numbers of glasses are:
The key measurements that describe eyeglass sizes are the eye size, bridge width and temple length.
The eye size
The bridge size (frame width)
The temple length
All three eyeglass and sunglass frame measurements are specified in millimeters (mm).
For example, lets say you see these three numbers on the inside of your frames: 48-19-140.
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Eye size
The first number the eye size is the horizontal width of the lens.
In this case, the openings in the frame for the lenses are 48 mm wide. Generally, the eye size (lens width) of most glasses frames will be 44 to 62 mm.
Bridge size
The second number the bridge size is the distance between the lenses.
In other words, its the size of the bridge of the frame that rests on your nose. In this case, the frame bridge is 19 mm wide. The bridge width of most eyeglass frames will be 14 to 24 mm.
Temple length
The third number the temple length is the length of the arms or stems of the frame.
Eyeglass temple size is measured from the hinge of the frame to the end tip of the temple. In this case, the temple length is 140 mm. Temple lengths generally range from 120 to 150 mm.
Other considerations
Often, a small square (rather than a dash) will separate the eye size and the bridge size on the frame.
In addition to the eye size, bridge size and temple length, you may see other numbers (or letters and names) stamped on the inside of the frame. These usually are the frame model and/or the color of the frame.
Be aware when ordering prescription glasses, two frames that have the same frame measurement may fit differently, depending on the style of the eyeglasses and the frame shape.
READ MORE about eyeglass sizes.
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